Tempus utile
[法] 盈利期间, 使用期间
🧩 词语组成解析
[医] 颞颥, 颞部
a. 有用的；有益的
🗣️ 情景例句
The bridge is about three hundred and eighty-five feet long.
桥长约三百八十五英尺。
I know the boy whose father is a dentist.
我知道那个男孩的父亲是牙医。
Why was that?
为什么呢？